LoginView.java

/*
 * Copyright 2013 ArcBees Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.gwtplatform.carstore.client.application.login;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.PasswordTextBox;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import com.gwtplatform.mvp.client.ViewWithUiHandlers;

public class LoginView extends ViewWithUiHandlers<LoginUiHandlers> implements LoginPresenter.MyView {
    interface Binder extends UiBinder<Widget, LoginView> {
    }

    @UiField
    Button login;
    @UiField
    PasswordTextBox password;
    @UiField
    TextBox username;

    @Inject
    LoginView(
            Binder uiBinder) {
        initWidget(uiBinder.createAndBindUi(this));

        username.getElement().setAttribute("placeholder", "Username");
        password.getElement().setAttribute("placeholder", "Password");
    }

    @Override
    public void setLoginButtonEnabled(boolean enabled) {
        login.setEnabled(enabled);
    }

    @UiHandler("login")
    void onLoginClicked(ClickEvent event) {
        processLogin();
    }

    @UiHandler("password")
    void onPasswordKeyUp(KeyUpEvent event) {
        if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
            processLogin();
        }
    }

    private void processLogin() {
        getUiHandlers().login(username.getValue(), password.getValue());

        username.setText("");
        password.setText("");
    }
}